Dynamic multiple beads manipulation on x-y-z directions

Dan Cojoc*, Valentina Emiliani, Enrico Ferrari, Valeria Garbin, Enzo Di Fabrizio

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

4 Scopus citations


The use of diffractive optical elements (DOEs) for multiple trapping of dielectric micro-spheres immersed in a fluid has been demonstrated recently. When the DOEs are implemented on a spatial light modulator (SLM), the trapped particles can be independently moved by changing the configuration of the DOE. In this paper we demonstrate phase DOEs implemented on an optical addressable SLM to move an array of trapped particles in a volume of about 20×20×6 μm. Experimental results show the usefulness of this technique for particle micromanipulation in biology.

Original languageEnglish (US)
Article number15
Pages (from-to)126-136
Number of pages11
JournalProceedings of SPIE - The International Society for Optical Engineering
StatePublished - 2004
Externally publishedYes
EventOptical Trapping and Optical Micromanipulation - Denver, CO, United States
Duration: Aug 2 2004Aug 6 2004


  • Diffractive optical elements
  • Optical tweezers
  • Spatial light modulators

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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